基于ETM^+与ASTER数据的矿化蚀变信息提取方法研究——以满都拉地区为例  

The Methods for Extracting Alteration Anomalies Based on the ETM^+ and Aster Data——A Case Study of the Mandula Area

作　　者：李建国[1] 毛德宝[1] 

机构地区：[1]天津地质矿产研究所,天津300170

出　　处：《地质调查与研究》2007年第3期234-240,共7页Geological Survey and Research

基　　金：内蒙古索伦山-东乌旗成矿带成矿环境;找矿方向及勘查技术方向研究(2004-1-KY08)

摘　　要：本文以满都拉地区为试验区,以ETM+和ASTER为数据源,选择了多种方法对全区及四个重点区进行了遥感矿化蚀变信息提取研究。研究结果表明:(1)在利用ETM+数据提取区域性矿化蚀变信息中,传统的Crósta技术在该区取得了较好的效果,提取的遥感矿化蚀变信息与区域已知矿点有显著的相关性,圈定的成矿远景区对区域找矿有着重要参考价值;(2)构建的ASTER数据提取矿化蚀变信息的系列方法是有效的,它大大提高了泥化蚀变信息的可识别性;(3)ETM+数据与ASTER数据的结合使用将有利于进一步扩展遥感技术在区域矿产调查中的应用前景。A serious of methods were selected to extract the alteration anomalies in the full work area and four main areas by using the ETM^＋ and ASTRE data in the Mandula area. Results showed that 1 ） the alteration anomalies extracted by traditional Cró sta Technique using ETM^＋ data, are remarkable correlative to known deposits and provide important significance for mineral exploration in the study area, 2） A serious of methods selected for the alteration anomalies extraction, are proved to be effective for enhancing the capability of recognize alteration minerals, 3） The combination of ETM^＋ and ASTER data will farther enlarge the applications of remote sensing technology in regional mineral exploration research.

关 键 词：蚀变信息 波谱采样 ETM^+ASTER 满都拉 

分 类 号：P627[天文地球—地质矿产勘探]